Sound-proof, heat-insulated and flame-retardant lightweight aggregate magnesite coagulating composite material and composite plate thereof

Abstract

The invention provides a sound-proof, heat-insulated and flame-retardant lightweight aggregate magnesite coagulating composite material and a composite plate. The sound-proof, heat-insulated and flame-retardant lightweight aggregate magnesite coagulating composite comprises a lightweight aggregate and a magnesite material; and the lightweight aggregate magnesite coagulating composite is prepared by wrapping the size of the magnesite material on the surface of the light aggregate, and then mixing and condensing and solidifying to obtain the product, wherein the volume ratio of the size of the magnesite material to the light aggregate is of (1 to 8): (12 to 19); the size of the magnesite material includes magnesium oxide, and magnesium chloride aqueous solution with concentration of 15 to 35 of baume degree, wherein the weight ratio of the magnesium oxide to the magnesium chloride aqueous solution is of 5: (2 to 4). The composite plate is the plate comprising the lightweight aggregate magnesite coagulating composite material; and an attaching face layer, an adhering face layer and an adhering layer are arranged on the plate. Building or decorative material products manufactured by the lightweight aggregate magnesite coagulating composite material and the composite plate are obvious in the reduction of the weight, as well as the improvement of the heat insulating performance, the sound-proof performance and the flame-retardant performance, and have relatively high compressive strength, can completely meet the construction standards; and the lightweight aggregate magnesite coagulating composite material and the composite plate can be widely applied.

Description

technical field [0001] The invention relates to a concrete material used for construction and decoration, especially a magnesite concrete material and a composite board made of the material. Background technique [0002] The existing magnesite materials used for construction and decoration are generally mainly composed of magnesium oxide and magnesium chloride solution, such as: magnesite cement, which is composed of magnesite prepared by roasting magnesite ore, and magnesium chloride solution. Building or decorative panels made of magnesite materials have high strength (compressive strength ≥ 60MPa), good flame retardancy (heat resistance / ℃> 300), combustion resistance (A grade non-combustible), good adhesion ( The slurry can be well bonded to the objects in contact with it during the solidification process, and has good cohesiveness) and good water resistance (the finished product of the slurry consolidated body is insoluble in water after it is completely solidified an...

AI Technical Summary

Problems solved by technology

[0003] 1. High brittleness: Although the slurry consolidated body has high strength, it is brittle

[0004] 2. Poor water resistance: the microscopic state of the slurry consolidated body is composed of fibrous crystals, and the gaps between the crystals are easily invaded by water to cause damage to the crystal structure, thus affecting the durability and freeze resistance of the slurry consolidated body fusion

[0005] 3. Easy to return to brine and generate moisture: Due to the problem of the mixing ratio, free chlorine ions are easily present in the slurry consolidation body, resulting in the phenomenon of return to halogen and moisture, which seriously affects the use of the slurry consolidation body

[0006] 4. It is very easy to deform during the coagulation process: a large amount of heat is released during the coagulation and solidification process of the slurry solidification body. This heat release process is concentrated within a few or more than ten hours. The condensed body expands during the exothermic process. After the exothermic process is completed, the slurry consolidated body undergoes a contraction process as the temperature drops to normal. large deformation

[0007] 5. The weight is still relatively large, which is a non-light material: the density of the consolidated body after the slurry is condensed and cured is about: 2200kg / m 3

[0010] 2. Not resistant to high temperature: when the temperature is ≥120°C, the polystyrene particles will start to melt, and when they reach the ignition point, they will start to shrink and burn

[0011] 3. Low strength: the compressive strength of polystyrene particles is less than 0.5 MPa

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